Home / 1,441,121.74-1,988,790.30-787,783.87

Finding the Fourth Proportional to 1,441,121.74, 1,988,790.30 and 787,783.87

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Solution

The fourth proportional to 1,441,121.74, 1,988,790.30 and 787,783.87 is: 1,087,164.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,441,121.74 : 1,988,790.30 = 787,783.87 : x
  2. Step 2: Convert to fraction form
    1,441,121.74/1,988,790.30 = 787,783.87/x
  3. Step 3: Cross multiply
    1,441,121.74x = 1,988,790.30 × 787,783.87
  4. Step 4: Simplify right side
    1,441,121.74x = 1,566,736,920,503.46
  5. Step 5: Solve for x
    x = 1,566,736,920,503.46/1,441,121.74
  6. Step 6: Final answer
    x = 1,087,164.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.